A precision casting mold for filter housing

Abstract

The present invention discloses a precision casting mold for a filter housing, and relates to the technical field of filter housing processing. The present invention includes a main frame assembly, including a base plate, a mounting frame fixed at the end surface of the base plate, and two cylinders fixed at the top of the mounting frame and symmetrically arranged, a shaping assembly, a fixed-point stamping assembly, including a moving frame of the same size as the inner side surface of the shaping box, and a stamping rod fixed at the lower end surface of the moving frame and equidistantly arranged, a plane stamping assembly, including a plane plate of the same size as the inner side surface of the shaping box and a linkage bar fixed at the end surface of the plane plate, a casting assembly, a shaking assembly, and a linkage reset assembly for driving the casting assembly to shake. The present invention drives the slurry inside the shaking assembly to shake, so that the slurry is more uniform inside the shaping assembly. At the same time, the coordinated use of the plane stamping assembly and the fixed-point stamping assembly realizes the linkage work of multi-point and plane compaction, thereby improving the compaction effect.

Description

Technical Field

[0001] The invention belongs to the technical field of filter housing processing, and in particular relates to a precision casting mold for a filter housing. Background Art

[0002] A filter is a device that can remove particles, impurities and pollutants from a fluid (gas or liquid). It is widely used in air purification, liquid filtration, industrial production, environmental protection and other fields. The shell used in the filter is of a complex shape. Therefore, in the processing of the filter shell, the existing filter shell processing technology mostly adopts the investment silica sol production process. In order to improve the processing quality of the filter shell, a specific casting process is required. Casting is the process of pouring molten metal liquid into a mold and cooling and solidifying to obtain the required shape and performance of the parts. Casting is a commonly used manufacturing method with low manufacturing cost, great process flexibility, and can obtain complex shapes and large castings.

[0003] Therefore, when casting the shell casting mold, the original casting process is the investment silica sol production process; the part structure is complex, the inner hole size is 4mm in diameter; the wall thickness is 1.5mm, which is not easy to form. For the production of the shell mold, casting and cleaning have brought great challenges. The inner hole cannot be dried; the metal liquid leaks during the pouring process; the residue inside the hole is not easy to remove; the local defects such as casting nodules are very likely to occur in the hole; the waste is high, which has a serious impact on the quality control. At the same time, when the casting mold is used to make the model, when the sand is filled in the mold, most of them will Sand is poured into the mold and squeezed, but this method requires repeated compression. Due to insufficient pouring, the sand inside the mold will be uneven, and the sand cannot be fully compressed, which will prevent the sand from effectively fitting with the mold, resulting in missing parts in the casting process, which will affect the casting quality. At the same time, although the existing compaction method uses single-point compaction and plane compaction, it is impossible to use the two methods together, so each time the compaction is performed, they need to be used alternately, which will reduce the compaction efficiency. To this end, we provide a filter housing precision casting mold to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a precision casting mold for a filter housing. By using a shaking component, the slurry inside it is driven to shake, so that the slurry is more evenly distributed inside the shaping component. At the same time, the coordinated use of the plane stamping component and the fixed-point stamping component realizes the linkage work of multi-point and plane compaction and improves the compaction effect.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention provides a filter housing precision casting mold, a main frame assembly, including a bottom plate, a mounting frame fixed at the end surface of the bottom plate, and two cylinders fixed at the top of the mounting frame and symmetrically arranged, a shaping assembly, including a shaping square frame located directly above the bottom plate and a plurality of heat sinks fixed at the front and rear end surfaces inside the shaping square frame and linearly arranged left and right, a fixed-point stamping assembly, including a moving frame of the same size as the inner side surface of the shaping square frame, stamping rods fixed at the lower end surface of the moving frame and arranged equidistantly, and a convex plate fixed at the lower end surface of each stamping rod, a plane stamping assembly, including a moving frame of the same size as the inner side surface of the shaping square frame, a stamping rod fixed at the lower end surface of the moving frame, a stamping rod fixed at the lower end surface of each stamping rod, and a plane stamping assembly. A plane plate and a linkage bar fixed on the upper end surface of the plane plate, a casting component, including a mold body abutting against the lower end surface of the shaping frame, arc bars fixed on the front and rear end surfaces of the mold body and cylinders fixed on the four diagonal positions of the lower end surface of the mold body, a ball hole is provided on the lower end surface of the cylinder, a shaking component, including four column barrels fixed on the upper end surface of the bottom plate, a ball block rotating in the inner position of each ball hole and an elliptical block sliding in the inner position of the column barrel, and a linkage reset component for driving the casting component to shake, including a centrifugal plate connected to the lower end surface of the arc bar and a centrifugal rod eccentrically fixed between the two centrifugal plates.

[0007] The filter housing precision casting process, the casting steps are as follows:

[0008] S1: Take anhydrous gypsum, water, mullite sand and silica sol materials, and blend the various materials in a ratio of 1:0.2:0.6:0.8 to prepare a slurry;

[0009] S2: Pour the slurry into the shaping component, and compact the slurry in the shaping component through the fixed-point stamping component and the plane stamping component, and shape the slurry through the casting component. After the pressure holding time is 5 seconds, take out the model from the mold and soak the molten core with water;

[0010] S3: After removing the excess flash and burrs of the model and trimming it to the required size, start grouting and complete it within 30 seconds; after 10 seconds, insert the 16# cut iron wire with a size of 20~30mm; and ensure the solidification time of 30~60 minutes, so as to realize the model making;

[0011] S4: After the model is cleaned and dried, paint is applied to the prepared paint bucket at room temperature of 24±3℃, and the paint is evenly sprinkled with 80-120 mesh refractory mullite sand; after natural drying for 4-6 hours, a transition layer is made;

[0012] S5: Sanding the upper reinforcement layer: silica sol: 200 mesh refractory powder, standard 16-18 / second; use mullite sand with a particle size of 16-30 mesh, apply evenly; after drying; repeat the application twice, after drying for 15-18 hours, the paint is sealed with 1 layer;

[0013] S6: Continue drying for 18 to 24 hours before dewaxing. After dewaxing, dry naturally for 4 hours before entering the melting and pouring process.

[0014] S7: The shell is baked at a temperature of 500±10℃ for 2 hours; the melting furnace is heated and continued to bake to 750±5℃; only then can the material (aluminum ingot) be loaded and melted, the molten metal temperature is measured, and the fracture of the sample is checked. After passing the test, pouring begins when the temperature of the molten metal and the shell mold meets the specified values ​​of the process; after pouring is completed, it is naturally cooled to room temperature and then cleaned and processed;

[0015] S8: After smelting is completed, the surface and inner cavity fire materials of the casting are taken out, and the convex spots formed by pouring are removed on a sawing machine. The casting is roughly ground to remove the residual nozzle, flash, burr, and residual sand, and the surface is roughly shot blasted (steel shot particle size 0.3 mesh);

[0016] S9: Initial inspection of casting quality. If qualified, it will be transferred to heat treatment process for heat treatment. After heat treatment, artificial aging will be carried out, and mechanical properties test will be carried out after completion. If qualified, it will be inspected again.

[0017] The present invention is further configured such that a motor is fixed on the upper end surface of the base plate, a driven wheel is fixed on the middle position of the centrifugal rod, the driven wheel is transmission-connected to the rotating shaft end of the motor via a belt, a mounting strip is rotationally connected to the circumference of the centrifugal rod located in front of the driven wheel, and the mounting strip is fixed on the upper end surface of the base plate.

[0018] The present invention is further configured such that L-shaped plates are fixed to the front and rear end surfaces of the mounting frame located between the two cylinders, and the bottom of the L-shaped plate abuts against the upper end surface of the flat plate, and reset plates are fixed between the left and right end surfaces inside the moving frame and are located on the inner side of the L-shaped plate.

[0019] The present invention is further configured such that a movable hole running through the upper and lower parts is opened in the middle of the reset plate, a positioning rod which matches the clearance of the movable hole is fixed at the bottom of the L-shaped plate, and a spring is sleeved around the positioning rod with both ends connected to the reset plate and the L-shaped plate.

[0020] The present invention is further configured such that a movable bar is fixed on the inner side of the movable frame located between the two reset plates, the linkage bar on the upper end surface of the plane plate is symmetrically arranged with the movable bar, the upper end surface of the movable bar abuts against the corresponding cylinder piston end, and the upper end surface of the linkage bar is bolted to the corresponding cylinder piston end.

[0021] The present invention is further configured such that a punching hole is provided on the upper end surface of the flat plate at a position corresponding to the stamping rod, a recess connected to the punching hole is provided on the lower end surface of the flat plate, the clearance between the stamping rod and the punching hole is matched, the convex plate is in the recess, and the peripheral side of the convex plate is in contact with the inner side surface of the recess, and a square opening penetrating from top to bottom is provided on the end surface of the flat plate at a position corresponding to the heat sink.

[0022] The present invention is further configured such that a positioning frame bar abutting against the upper end surface of the mold body is fixed on the outer peripheral side of the shaping frame, a limiting hole is penetrated through the upper end surface of the positioning frame bar, and a plurality of limiting rods respectively inserted into the internal positions of the limiting holes are fixed on the upper end surface of the mold body.

[0023] The present invention is further configured such that the upper end surface of the column is provided with a blocking hole connected to the interior thereof, a ball rod passing through the inner position of the blocking hole is fixed to the circumference of the ball block, and an elliptical block connected to the inner side surface of the column is fixed to the lower end surface of the ball rod.

[0024] The present invention is further configured such that spring 2 is fixed to the upper and lower end surfaces of the elliptical block, and the end surfaces of spring 2 are respectively in contact with the inner end surface of the column, and spring 2 located above the elliptical block is sleeved on the ball rod.

[0025] The present invention has the following beneficial effects:

[0026] By adopting the casting process, the strength of the shell model can be reduced, the sand cleaning efficiency can be ensured, and the residual sand in the inner cavity of the shell can be easily cleaned.

[0027] The motor is controlled to work, whereby the motor will drive the driven wheel to rotate, and thereby drive the centrifugal rod to rotate, so that the centrifugal rod drives the centrifugal plate to rotate, and thereby drives the arc plate connected to it to shake in multiple directions, and at this time, it will also drive the mold body and the shaping frame to shake in multiple directions, shaking the slurry inside to make it evenly distributed.

[0028] When single-point compaction is performed on the inside, the cylinder connected to the movable bar is controlled to work, thereby pushing the movable frame to move, and driving the punching rod and the convex plate to compact the slurry on the side of the shaping frame. When plane compaction is performed, the cylinder connected to the linkage bar is controlled to work, thereby pushing the plane plate to move, and the plane plate will drive the convex plate to follow the movement, thereby fully compacting the inside of the shaping frame, so that the punching rod and the plane plate can be used together to improve the compaction efficiency.

[0029] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2It is a combination diagram of the main frame component, the shaking component and the linkage reset component in the present invention.

[0033] Figure 3 It is a structural diagram of the mold body in the present invention.

[0034] Figure 4 It is a structural diagram of the shaping frame and the positioning frame strip in the present invention.

[0035] Figure 5 It is a combination diagram of the centrifugal plate and the centrifugal rod in the present invention.

[0036] Figure 6 It is a structural combination diagram of the flat plate and the linkage strip in the present invention.

[0037] Figure 7 It is a structural diagram of the movable frame, the punching rod, the movable bar and the reset plate in the present invention.

[0038] Figure 8 It is a combination diagram of the column tube, spherical block and elliptical block in the present invention.

[0039] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0040] 100, main frame assembly; 101, bottom plate; 102, mounting frame; 102a, L-shaped plate; 102a-1, positioning rod; 102a-2, spring 1; 103, motor; 104, cylinder; 200, shaping assembly, 201, shaping square frame; 201a, heat sink; 202, positioning frame strip; 202a, limiting hole; 300, fixed point stamping assembly; 301, moving frame; 302, stamping rod; 302a, convex plate; 303, movable strip; 304, reset plate; 304a, movable hole; 400, plane stamping assembly; 4 01, flat plate; 401a, punching hole; 401b, notch; 401c, square mouth; 402, linkage bar; 500, casting component; 501, mold body; 501a, limit rod; 502, cylinder; 502a, ball mouth; 503, arc bar; 600, shaking component; 601, centrifugal plate; 602, driven wheel; 603, mounting bar; 604, centrifugal rod; 700, linkage reset component; 701, cylinder; 701a, blocking hole; 702, ball block; 702a, ball rod; 703, elliptical block; 703a, spring two. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0042] In the first embodiment of the present invention, a precision casting process for a filter housing is provided, wherein the casting steps are as follows:

[0043] S1: Take anhydrous gypsum, water, mullite sand and silica sol materials, and blend the various materials in a ratio of 1:0.2:0.6:0.8 to prepare a slurry;

[0044] S2: pour the slurry into the shaping component 200, and compact the slurry in the shaping component 200 through the fixed-point punching component 300 and the plane punching component 400, and shape the slurry through the casting component 500, take out the model from the mold after holding the pressure for 5 seconds, and soak the molten core with water;

[0045] S3: After removing the excess flash and burrs of the model and trimming it to the required size, start grouting and complete it within 30 seconds; after 10 seconds, insert the 16# cut iron wire with a size of 20~30mm; and ensure the solidification time of 30~60 minutes, so as to realize the model making;

[0046] S4: After the model is cleaned and dried, paint is applied to the prepared paint bucket at room temperature of 24±3℃, and the paint is evenly sprinkled with 80-120 mesh refractory mullite sand; after natural drying for 4-6 hours, a transition layer is made;

[0047] S5: Sanding the upper reinforcement layer: silica sol: 200 mesh refractory powder, standard 16-18 / second; use mullite sand with a particle size of 16-30 mesh, apply evenly; after drying; repeat the application twice, after drying for 15-18 hours, the paint is sealed with 1 layer;

[0048] S6: Continue drying for 18 to 24 hours before dewaxing. After dewaxing, dry naturally for 4 hours before entering the melting and pouring process.

[0049] S7: The shell is baked at a temperature of 500±10℃ for 2 hours; the melting furnace is heated and continued to bake to 750±5℃; only then can the material (aluminum ingot) be loaded and melted, the molten metal temperature is measured, and the fracture of the sample is checked. After passing the test, pouring begins when the temperature of the molten metal and the shell mold meets the specified values ​​of the process; after pouring is completed, it is naturally cooled to room temperature and then cleaned and processed;

[0050] S8: After smelting is completed, the surface and inner cavity fire materials of the casting are taken out, and the convex spots formed by pouring are removed on a sawing machine. The casting is roughly ground to remove the residual nozzle, flash, burr, and residual sand, and the surface is roughly shot blasted (steel shot particle size 0.3 mesh);

[0051] S9: Initial inspection of casting quality. If qualified, it will be transferred to heat treatment process for heat treatment. After heat treatment, artificial aging will be carried out, and mechanical properties test will be carried out after completion. If qualified, it will be inspected again. Example 2

[0052] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 The present invention provides a precision casting mold for a filter housing. Based on Example 1, this embodiment uses a shaking component 600 to drive the slurry inside it to shake, so that the slurry is more evenly distributed inside the shaping component 200. At the same time, the coordinated use of the plane stamping component 400 and the fixed-point stamping component 300 realizes the linkage work of multi-point and plane compaction and improves the compaction effect.

[0053] Specifically, the main frame assembly 100, the shaping assembly 200, including a shaping frame 201 located directly above the bottom plate 101 and a plurality of heat sinks 201a fixed to the front and rear end surfaces of the shaping frame 201 and arranged linearly from left to right, the fixed point punching assembly 300, the plane punching assembly 400, including a plane plate 401 having the same size as the inner side surface of the shaping frame 201 and a linkage bar 402 fixed to the upper end surface of the plane plate 401, the casting assembly 500, including a plane plate 401 having the same size as the inner side surface of the shaping frame 201 and a linkage bar 402 fixed to the upper end surface of the plane plate 401, 1, a mold body 501 with its lower end faces abutted against each other, arc strips 503 fixed at the front and rear end faces of the mold body 501, and cylinders 502 fixed at the four diagonal positions of the lower end face of the mold body 501, a shaking assembly 600, including four cylinders 701 fixed at the upper end face of the bottom plate 101, a ball block 702 rotating at the inner position of each ball mouth 502a, and an elliptical block 703 sliding at the inner position of the cylinder 701, and a linkage reset assembly 700 for driving the casting assembly 500 to shake;

[0054] Through the arrangement and use of the above-mentioned structure, through the use of the main frame assembly 100, the shaping assembly 200, the fixed-point stamping assembly 300, the plane stamping assembly 400 and the casting assembly 500 are supported, and at the same time, the cylinder 104 can be controlled to work, thereby driving the fixed-point stamping assembly 300 and the plane stamping assembly 400 to perform stamping activities, and after the slurry is poured into the internal position of the shaping frame 201, the slurry will cover the upper end surface position of the mold body 501, so after stamping, the slurry will be compacted, and the activity of the linkage reset assembly 700 can drive the casting assembly 500 and the shaping assembly to shake, thereby driving the slurry inside them to shake, so that the slurry is more evenly distributed inside the shaping assembly 200.

[0055] according to Figure 2 , Figure 3 and Figure 5, a bottom plate 101, a mounting frame 102 fixed to the end surface of the bottom plate 101, and two cylinders 104 fixed to the top of the mounting frame 102 and arranged symmetrically, a moving frame 301 of the same size as the inner side surface of the shaping square frame 201, punching rods 302 fixed to the lower end surface of the moving frame 301 and arranged equidistantly, and a convex plate 302a fixed to the lower end surface of each punching rod 302, a motor 103 is fixed to the upper end surface of the bottom plate 101, and the middle position of the centrifugal rod 604 A driven wheel 602 is fixed, and the driven wheel 602 is connected to the rotating shaft end of the motor 103 through a belt. A centrifugal rod 604 located in front of the driven wheel 602 is rotatably connected to a mounting bar 603 on the circumference, and the mounting bar 603 is fixed to the upper end surface of the bottom plate 101. A ball hole 502a is opened on the lower end surface of the cylinder 502, including a centrifugal plate 601 connected to the lower end surface of the arc bar 503 and a centrifugal rod 604 fixed between the two centrifugal plates 601 and eccentrically arranged.

[0056] Through the setting and use of the above-mentioned structure, by controlling the operation of the motor 103, the motor 103 will drive the driven wheel 602 to rotate, and thereby drive the centrifugal rod 604 to rotate, so that the centrifugal rod 604 drives the centrifugal plate 601 to rotate, and thereby drives the arc plate connected thereto to shake in multiple directions, and at this time, it will also drive the mold body 501 and the shaping frame 201 to shake in multiple directions, shake the slurry inside it to make it evenly distributed, and at the same time, when performing single-point compaction inside it, the cylinder 104 connected to the movable bar 303 is controlled to work, thereby pushing the moving frame 301 to move, and driving the punching rod 302 and the convex plate 302a to compact the slurry on the side of the shaping frame 201, and when performing plane compaction, the cylinder 104 connected to the linkage bar 402 is controlled to work, thereby pushing the plane plate 401 to move, and the plane plate 401 will drive the convex plate 302a to follow the movement, thereby fully compacting the inside of the shaping frame 201.

[0057] Further, according to Figure 2 , Figure 6 and Figure 7 It can be seen that a movable bar 303 is fixed to the inner side surface of the movable frame 301 located between the two reset plates 304, and the linkage bar 402 on the upper end surface of the flat plate 401 is symmetrically arranged with the movable bar 303. The upper end surface of the movable bar 303 is in contact with the corresponding piston end of the cylinder 104, and the upper end surface of the linkage bar 402 is bolted to the corresponding piston end of the cylinder 104. When the cylinder 104 connected to the linkage bar 402 is reset, it will drive the linkage bar 402 to follow the reset, thereby driving the flat plate 401 to reset. When the cylinder 104 connected to the movable bar 303 is reset, the movable bar 303 will not follow the cylinder 104 to reset.

[0058] Further, according to Figure 6 and Figure 7It can be seen that a punch hole 401a is provided at the position of the upper end surface of the flat plate 401 corresponding to the punching rod 302, and a recess 401b connected to the punch hole 401a is provided on the lower end surface of the flat plate 401; the clearance between the punching rod 302 and the punch hole 401a is matched, the convex plate 302a is located in the recess 401b, and the peripheral side of the convex plate 302a is in contact with the inner side of the recess 401b, and a square opening 401c penetrating from top to bottom is provided at the position of the end surface of the flat plate 401 corresponding to the heat sink 201a. Since the convex plate 302a is located in the internal position of the recess 401b, when the flat plate 401 moves, the flat plate 401 drives the convex plate 302a to follow the movement, and when the flat plate 401 is located in the internal position of the shaping frame 201, the heat sink 201a will be inserted into the recess 401b at this time, ensuring that the movement of the flat plate 401 will not be restricted by the heat sink 201a.

[0059] It should be noted that when using the fixed-point stamping assembly 300 and the plane stamping assembly 400, the centrifugal plate 601 needs to be at the topmost position to ensure that the positions of the shaping frame 201, the moving frame 301, and the plane plate 401 are consistent up and down, thereby ensuring the stability of the stamping work. At the same time, the motor 103 and the cylinder 104 used are operated by an external control device, and the shaping assembly 200 and the casting assembly 500 used can be disassembled for use. The specific amount of equipment is used according to production needs. Example 3

[0060] See also Figure 2 and Figure 7 On the basis of Example 2, this embodiment can facilitate the control of the reset work of the punching rod 302 and the convex plate 302a by using the spring 102a-2 and the reset plate 304 in combination.

[0061] Specifically, L-shaped plates 102a are fixed to the front and rear end surfaces of the mounting frame 102 located between the two cylinders 104, and the bottom of the L-shaped plate 102a is in contact with the upper end surface of the flat plate 401, and reset plates 304 are fixed between the left and right end surfaces inside the movable frame 301 and are located on the inner side of the L-shaped plate 102a respectively, and movable holes 304a are opened in the middle position of the reset plate 304 running through the upper and lower parts, and a positioning rod 102a-1 is fixed to the bottom of the L-shaped plate 102a, and a spring 102a-2 is sleeved on the circumference of the positioning rod 102a-1, and the two ends of the spring 102a-2 are connected to the reset plate 304 and the L-shaped plate 102a.

[0062] By setting and using the above-mentioned structure, when the cylinder 104 connected to the movable bar 303 works, it will drive the moving frame 301 to move, so that the moving frame 301 will drive the reset plate 304 to compress the spring 102a-2. Therefore, after the cylinder 104 is reset, the spring 102a-2 will push the reset plate 304 to move upward, so as to reset the moving frame 301, thereby resetting the stamping rod 302 and the convex plate 302a. At the same time, the spring 102a-2 is sleeved on the positioning rod 102a-1, so when the movable hole 304a on the reset plate 304 slides along the positioning rod 102a-1, the positioning rod 102a-1 limits the spring 102a-2. Example 4

[0063] See also Figure 3 and Figure 4 On the basis of Example 2, this embodiment uses the cooperation between the limiting hole 202a and the limiting rod 501a to ensure stable abutment between the shaping frame 201 and the mold body 501.

[0064] Specifically, a positioning frame bar 202 abutting against the upper end surface of the mold body 501 is fixed to the outer peripheral side of the shaping frame 201, and a limiting hole 202a is formed through the upper end surface of the positioning frame bar 202. A plurality of limiting rods 501a are fixed to the upper end surface of the mold body 501 and are respectively inserted into the internal positions of the limiting holes 202a.

[0065] Through the setting and use of the above-mentioned structure, after the shaping frame 201 is set at the upper end surface position of the mold body 501, the limiting hole 202a is aligned with the limiting rod 501a, so that the limiting rod 501a is inserted into the limiting hole 202a. Thus, the limiting hole 202a and the limiting rod 501a cooperate with each other to make the abutment between the shaping frame 201 and the mold body 501 stable. Example 5

[0066] See also Figure 2 , Figure 3 and Figure 8 On the basis of Example 2, this embodiment ensures that the shaping frame 201 will not tilt excessively and avoid the slurry from sliding off by using the blocking hole 701a, the ball rod 702a, the elliptical block 703 and the spring 2 703a, and facilitates the resetting of the position of the mold body 501 and the shaping frame 201.

[0067] Specifically, the upper end surface of the cylinder 701 is provided with a blocking hole 701a connected to the interior thereof, a ball rod 702a passing through the inner position of the blocking hole 701a is fixed to the circumferential side of the ball block 702, an elliptical block 703 connected to the inner side surface of the cylinder 701 is fixed to the lower end surface of the ball rod 702a, a spring 2 703a is fixed to the upper and lower end surfaces of the elliptical block 703, and the end surfaces of the spring 2 703a are respectively abutted against the inner end surface of the cylinder 701, and the spring 2 703a located above the elliptical block 703 is sleeved on the ball rod 702a.

[0068] Through the arrangement and use of the above-mentioned structure, when the centrifugal plate 601 drives the mold body 501 to shift its position, the mold body 501 will drive the ball block 702 to adjust its position, compress the ball rod 702a or drive the ball rod 702a to tilt its position, so that the ball rod 702a will drive the elliptical block 703 to rotate inside the cylinder 701, and the elliptical block 703 compresses or stretches the spring 2 703a. After the ball rod 702a tilts at a certain angle in the blocking hole 701a, the ball rod 702a will be limited and blocked by the blocking hole 701a, ensuring that the shaping frame 201 will not tilt excessively and avoiding the slurry from slipping. At the same time, the use of the spring 2 703a can facilitate the reset of the mold body 501 and the shaping frame 201.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A filter housing precision casting mold, characterized in that: include The main frame assembly (100) comprises a bottom plate (101), a mounting frame (102) fixed at an end surface of the bottom plate (101), and two symmetrically arranged cylinders (104) fixed at the top of the mounting frame (102); A shaping component (200) comprises a shaping square frame (201) located directly above the bottom plate (101) and a plurality of heat sinks (201a) fixed to the front and rear end surfaces of the shaping square frame (201) and arranged linearly in the left and right directions; The fixed-point punching assembly (300) comprises a movable frame (301) having the same size as the inner side surface of the shaping frame (201), punching rods (302) fixed to the lower end surface of the movable frame (301) and arranged at equal distances, and a convex plate (302a) fixed to the lower end surface of each punching rod (302); The flat stamping assembly (400) comprises a flat plate (401) having the same size as the inner side surface of the shaping frame (201) and a linkage bar (402) fixed to the upper end surface of the flat plate (401); The casting assembly (500) comprises a mold body (501) abutting against the lower end surface of the shaping frame (201), arc strips (503) fixed at the front and rear end surfaces of the mold body (501), and cylinders (502) fixed at four diagonal positions of the lower end surface of the mold body (501), wherein the lower end surface of the cylinder (502) is provided with a ball hole (502a); The shaking assembly (600) comprises four cylinders (701) fixed to the upper end surface of the bottom plate (101), a ball block (702) rotating inside each ball opening (502a), and an elliptical block (703) sliding inside the cylinder (701); and, A linkage reset assembly (700) for driving the casting assembly (500) to shake, comprising a centrifugal plate (601) connected to the lower end surface of the arc strip (503) and a centrifugal rod (604) eccentrically fixed between the two centrifugal plates (601); The filter housing precision casting is implemented through the following steps: S1: Take anhydrous gypsum, water, mullite sand and silica sol materials, and blend the various materials in a ratio of 1:0.2:0.6:0.8 to prepare a slurry; S2: pouring the slurry into the shaping component (200), and compacting the slurry in the shaping component (200) through the fixed-point stamping component (300) and the plane stamping component (400), so that the model is shaped through the cooperation of the fixed-point stamping component (300), the plane stamping component (400) and the casting component (500), and after the pressure is maintained for 5 seconds, the model is taken out from the mold and the molten core is soaked with water; S3: After removing the excess flash and burrs of the model and trimming it to the required size, start grouting and complete it within 30 seconds; after 10 seconds, insert the 16# cut iron wire with a size of 20~30mm; and ensure the solidification time of 30~60 minutes, so as to realize the model making; S4: After the model is cleaned and dried, paint is applied to the prepared paint bucket at room temperature of 24±3℃, and the paint is evenly sprinkled with 80-120 mesh refractory mullite sand; after natural drying for 4-6 hours, a transition layer is made; S5: Sanding the upper reinforcement layer: silica sol: 200 mesh refractory powder, standard 16-18 seconds; use mullite sand with a particle size of 16-30 mesh, apply evenly; after drying; repeat the application twice, after drying for 15-18 hours, the paint is sealed with 1 layer; S6: Continue drying for 18 to 24 hours before dewaxing. After dewaxing, dry naturally for 4 hours before entering the melting and pouring process. S7: The shell is baked at a temperature of 500±10℃ for 2 hours; the melting furnace is heated and continued to bake to 750±5℃; only then can the material be loaded and melted, the molten metal temperature is measured, and the fracture of the sample is checked. After passing the test, pouring begins when the temperature of the molten metal and the shell mold meets the specified values ​​of the process; after pouring is completed, it is naturally cooled to room temperature and then cleaned and processed; S8: After smelting is completed, the surface and inner cavity fire materials of the casting are taken out, and the convex spots formed by pouring are removed on a sawing machine. The casting is roughly ground for residual nozzles, flash, burrs, residual sand, and the surface is roughly shot blasted; S9: Initial inspection of casting quality. If qualified, it will be transferred to heat treatment process for heat treatment. After heat treatment, artificial aging will be carried out, and mechanical properties test will be carried out after completion. If qualified, it will be inspected again.

2. A filter housing precision casting mold according to claim 1, characterized in that: A motor (103) is fixed to the upper end surface of the bottom plate (101); a driven wheel (602) is fixed to the middle position of the centrifugal rod (604); the driven wheel (602) is transmission-connected to the rotating shaft end of the motor (103) via a belt; a mounting bar (603) is rotationally connected to the circumference of the centrifugal rod (604) located in front of the driven wheel (602); and the mounting bar (603) is fixed to the upper end surface of the bottom plate (101).

3. A filter housing precision casting mold according to claim 1, characterized in that: L-shaped plates (102a) are fixed to the front and rear end surfaces of the mounting frame (102) located between the two cylinders (104), and the bottom of the L-shaped plate (102a) is in contact with the upper end surface of the plane plate (401). A reset plate (304) located at the inner side of the L-shaped plate (102a) is fixed between the left and right end surfaces inside the moving frame (301).

4. A filter housing precision casting mold according to claim 3, characterized in that: A movable hole (304a) is provided in the middle of the reset plate (304) and passes through the reset plate (304a) from top to bottom. A positioning rod (102a-1) that is loosely matched with the movable hole (304a) is fixed to the bottom of the L-shaped plate (102a). A spring (102a-2) is sleeved around the positioning rod (102a-1) and has two ends connected to the reset plate (304) and the L-shaped plate (102a).

5. The filter housing precision casting mold according to claim 3, characterized in that: A movable bar (303) is fixed on the inner side of the movable frame (301) between the two reset plates (304), and the linkage bar (402) on the upper end surface of the plane plate (401) is symmetrically arranged with the movable bar (303); The upper end surface of the movable bar (303) abuts against the piston end of the corresponding cylinder (104), and the upper end surface of the linkage bar (402) is bolt-connected to the piston end of the corresponding cylinder (104).

6. The filter housing precision casting mold according to claim 1, characterized in that: The upper end surface of the flat plate (401) is provided with a punching hole (401a) at a position corresponding to the punching rod (302), and the lower end surface of the flat plate (401) is provided with a notch (401b) connected to the punching hole (401a); The punching rod (302) is clearance-matched with the punching hole (401a); the convex plate (302a) is located in the recess (401b); and the peripheral side of the convex plate (302a) is in contact with the inner side of the recess (401b); and the end surface of the flat plate (401) corresponding to the heat sink (201a) is provided with a square opening (401c) penetrating from top to bottom.

7. The filter housing precision casting mold according to claim 1, characterized in that: A positioning frame strip (202) abutting against the upper end surface of the mold body (501) is fixed to the outer peripheral side of the shaping square frame (201), a limiting hole (202a) is formed through the upper end surface of the positioning frame strip (202), and a plurality of limiting rods (501a) respectively inserted into the internal positions of the limiting holes (202a) are fixed to the upper end surface of the mold body (501).

8. The filter housing precision casting mold according to claim 1, characterized in that: The upper end surface of the column (701) is provided with a blocking hole (701a) connected to the interior thereof, a ball rod (702a) passing through the inner position of the blocking hole (701a) is fixed to the circumference of the ball block (702), and an elliptical block (703) connected to the inner side surface of the column (701) is fixed to the lower end surface of the ball rod (702a).

9. A filter housing precision casting mold according to claim 8, characterized in that: The upper and lower end surfaces of the elliptical block (703) are both fixed with spring 2 (703a), and the end surfaces of spring 2 (703a) are respectively in contact with the inner end surface of the cylinder (701), and spring 2 (703a) located above the elliptical block (703) is sleeved on the ball rod (702a).

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